Avatar at AK?

Honestly I was shocked about the Avatar news. I did see the movie. To me it was the typical, boy meets girl, boy gets girls, looses girls and gets girl back. Typical.

Even if they want to add Avatar, does it really deserve a whole Land? At least with Harry Potter, Universal knew what they were getting. All the books had already been out and already had a huge fan base spans a whole generation. What does Avatar have? People saw the movie, they liked it, so what. I understand the idea about wanting it in AK, but I agree with others and Disney should consider Methology, Dragons, etc. I just think Avatar is long term mistake.